C&P from the Travel topic as I was being ignored <<huff>
The journey will involve a short Tube journey to Liverpool Street, then a longer train journey to Harwich. Then the ferry - obviously - then trains etc through Holland. And then using it throughout the week on trains etc in Holland (although Dutch railways are much better for buggy access IIRC) and the same journey back again.
So the buggy I choose must be lightweight, easy to lift up and down stairs, comfortable for ds for long periods of time and for him to go to sleep in, and have plenty of room underneath.